Google Talk is a fairly popular messaging client that has taken a while to gain momentum with its user base, but, like many other Google products with almost no marketing campaign behind it…it still takes off. Enter T-Mobile 3G and 4G networks, using a Google Nexus S with front facing camera, blend with the latest gTalk app, and you now have functional video chat capabilities which actually looks pretty darn good over 3G as well as 4G. Dare I say even better than Facetime on the iPhone over AT&T 3G… I dare.